Reinforced paperboard can

Abstract

A reinforced paperboard can is constructed from a pair of rectangular, superposed paperboard blanks each of which is transversely scored to form side and end walls of the can. Those panels of each blank which are to constitute the side walls are uniform in size and those panels which are to constitute the end walls also are uniform in area. Each of the blanks is scored longitudinally whereby flaps are formed along one edge of the panels of one blank and which are separated by slits so as to enable the flaps to form a bottom closure for the can. The other blank has a smaller area than the first blank so that the other blank has tabs of less area than the flaps and which are separated from one another by slits so as to enable the tabs to overlie the flaps. The can thus produced has double thickness side and end walls, and the closure flaps adjacent the side and end walls also are double thickness. A top closure for the can may be provided by flaps similar to the first mentioned flaps or by a separate top member which may be crimped to the side and end walls.

I claim: 
     
       1. Structure for forming a reinforced paperboard can comprising a first rectangular paperboard blank scored transversely to form a plurality of side-by-side panels and scored longitudinally to form a plurality of coextensive flaps at least along one edge of said panels, each of said flaps being separated from the adjacent flap by a slit; a second rectangular paperboard blank having a length corresponding to the length of said first blank and a width less than that of said first blank, said blanks being of substantially uniform thickness, said second blank being scored transversely to form a plurality of side-by-side panels corresponding in number and area to the number and area of the panels of said first blank and being scored longitudinally to form a plurality of coextensive tabs at least along one edge of the panels of said second blank, each of said tabs being separated from the adjacent tab, said first and second blanks being superposed with their respective panels, flaps and tabs in overlying relation and the panels in register with one another; and means securing said blanks to one another. 
     
     
       2. Structure according to claim 1 wherein said first blank has a plurality of said flaps extending along that edge of the panels of said first blank which is opposite said one edge. 
     
     
       3. Structure according to claim 2 wherein said second blank has a plurality of said tabs overlying the flaps extending along said opposite edge of said first blank. 
     
     
       4. Structure according to claim 1 wherein each of said tabs has a free edge, each of said free edges being skived. 
     
     
       5. Structure according to claim 1 wherein alternate ones of said panels of said first blank and alternate ones of said flaps extend a uniform distance on opposite sides of and away from the longitudinal score. 
     
     
       6. Structure according to claim 1 wherein alternate ones of the flaps of said first blank extend a greater distance from the associated score line than do the adjacent flaps. 
     
     
       7. Structure according to claim 1 wherein all of the flaps of said first blank have free edges flush with each other. 
     
     
       8. Structure according to claim 1 wherein said first blank has coextensive flaps along both edges of said panels. 
     
     
       9. Structure according to claim 8 wherein said second blank has tabs overlying and secured to the subjacent flaps. 
     
     
       10. Structure according to claim 1 wherein the panels of said first blank are scored adjacent their juncture with one another. 
     
     
       11. Structure according to claim 10 wherein said panels of said first blank are scored only at the edge thereof opposite said one edge thereof and along inwardly converging lines.